Sacrifice Quotes in Allegiant

How we cite our quotes: (Chapter.Paragraph)

Quote #10

"[My mother] taught me all about real sacrifice. That it should be done from love […] That it should be done from necessity, not without exhausting all other options. That it should be done for people who need your strength because they don't have enough of their own." (50.24)

Do you think Tris exhausted all other options before sacrificing herself? Should she have tried harder to find out the security code? And if she did do this out of love, who is it she loves? Who is she sacrificing herself for? Tobias? Caleb? Everyone?